title: Development of contraceptives--obstacles and opportunities.
authors.affiliation: Hospital of the University of Pennsylvania, Philadelphia 19104.
authors.forename: L
authors.initials: L
authors.lastname: Mastroianni
authors.forename: P J
authors.initials: PJ
authors.lastname: Donaldson
authors.forename: T T
authors.initials: TT
authors.lastname: Kane
mesh_terms: D003270:Contraceptive Agents / Q000592:standards; D003273:Contraceptive Devices / Q000592:standards; D004345:Drug Industry; D007603:Jurisprudence; D012106:Research; D014481:United States; D014486:United States Food and Drug Administration
chemical_list: D003270:Contraceptive Agents